Don't let valuable customers fall out of your funnel!
You should be thinking of your customer journey in terms of a "flywheel", instead of funnel—and focus your strategy on continuously wooing them!
Why is this so important? Because, a satisfied customer, that becomes an evangelist for your company and services can have a major impact on the growth of your company and assist your marketing efforts! And, a not so satisfied customer, well...you probably can figure that one out!